Valence isomerism
[化] 价异构
🧩 词语组成解析
valence
[['veiləns]]
n. 原子价\\n[化] 化合价; 原子价
n. 异性\\n[化] 异构; 异构现象
🗣️ 情景例句
Do you sell foreign literature?
这儿有外国文学读物卖吗？
I try to keep in touch with current events by reading the newspapers.
我经常读报以尽量了解时事。
I've been here for about two years. I've been here since 1993.
我到这儿大约有两年时间了。我自1993年就到这儿学习。